Marine steam-boiler



(No Model.)

0. KLING. MARINE STEAM BOILER.

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UNITED STATES PATENT I OFFICE.

OLOF KLING, OF CHICAGO, ILLINOIS.

MARINE STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 578,753, dated March16, 1897.

Application filed April 15, 1896. Serial No- 587,592. (No model.)

To all whom it may concern..-

Be it known that I, OLOF KLING, a citizen of the United States, residingat Chicago, in the county of Cook and State of Illinois, have invented anew and useful Improvement in Marine Steam-Boilers, of which thefollowing is a specification.

The object of my invention is to produce a boiler compact in form havingthe maximum heating-surface, together with a design inexpensive ofconstruction and one that will require but little repairing; and theinvention consists of the devices set forth in the claims hereof.

Reference will be had to the accompanying drawings, in which- Figure 1is a front elevation of the left half of the boiler. Fig. 2 is avertical sectional longitudinal view on line 2 2 of Fig. 3. Fig. 3 is arear elevation with one side in section on line 3 3 of Fig. 2.

In the drawings, B designates the main-flue shell of the boiler, and F Fthe fire-box drums.

S designates the smoke-flue. (Shown only in dotted lines in Figs. 1 and2.)

G designates the grate-bars in the interior of the fire-box drums, atthe ends of which there is a block of fire-brick g.

The fire-box drums F are water-jacketed at all sides, save at thefurnace-door ends, and the water-legs L, L, and L connect the drums withthe flue-shell B. As the waterlegs L L extend around the four sides ofthe fines, they may be considered as a single leg having the smoke-finesin its middle and a short distance from each of its sides. Between thewater-legs, which are at the ends of the drums and main shell, thejacketed firebox drums and the main shell are not necessarily connectedin any way, although the metal sheets forming the inclined walls may, ifdesired, be extended the whole length of the boiler. WVhether or notthey be so extended, the space P between the main shell and fire-boxdrums may be filled with brickwork or the like.

The water-legs L, L, and L connecting the water-jackets of the fire-boxdrums, give the best possible circulation, and the flue-sheets at theends of the water-legs L L extend straight down to the drums, which is adesirable form and inexpensive.

The flue-shell of the boiler may be made thinner than when thefire-boxes are con tained within the shell, since the diameter of theshell is less, and the outside dimensions of the boiler are less for thesame capacity of boiler than the marine boiler having the fireboxeswithin the main shell.

\Vhat I claim is 1. The combination with the two waterjacketed fire-boxdrums, of the main-flue shell located centrally above the two and at ashort distance from each and provided at its ends with water-legsforming an open conneetion between it and the corresponding ends of thewater-jackets of the drums.

2. The combination with the two waterjacketed fire-box drums, of themain-flue shell located centrally above the two at a suitable distancefrom each and provided at its ends with water-legs connecting it withthe drum-jackets, and smoke-fines located centrally in the legs at oneend of the main shell and connecting the fire-boxes with the fines ofthe latter.

3. The combination with the two separated fire-box drums, of thewater-jackets encircling said drums, respectively, the main-flue shelllocated above said drums and having its end sheets extended below thecorresponding ends of the drums and rigidly united to the latter to formone whole of the drums and shell, water'legs connecting correspondingends of the three members, and sheet-metal flues extending from the rearends of the drums upward into the main shell and receiving the ends ofthe flue-tubes therein.

4. In a boiler of the class described, the combination of a main-flueshell and fire-box drums independent of the flue-shell, and withwater-legs connecting the fire-box drums at each end, and atapointintermediate between the ends the sheets of metal forming the fluesheetsof the main shell extending downward and forming sides of thewater-legs, substantially as shown and described.

In witness whereof I have hereunto subscribed mynalne, on this 2d day ofApril, 1896, in the presence of two subscribing witnesses.

OLOF KLING.

Witnesses:

CHARLES KLING, F. H. DEANE.

